#include <stdio.h>
#include <stdlib.h>
#include <math.h>


#ifndef PPMCANVAS_H
#define PPMCANVAS_H
typedef struct {
  int width;
  int height;
  char *filename;
  char *comment;
} PpmCanvas;



void init(PpmCanvas *ppm, int w, int h, char *fn);
void save(PpmCanvas *ppm);

#endif
